Improvement in lubricators



tnted mes JOHN B ROUG'HT-O'N, .0F NEW 'YORK N. Y.

.Letters Patent No. 96,389, dated November 2, 1869.

IMPROVEMENT IN LUBRIcA'roRs.

The Schedule referred to in these Lettera Patent and making part cf -the same.

To all 'whom 'itnnay concern;

Be it known that I, J oHN BROUGHTON, of the city county, and State of New York, have invented a, new and useful Improvement in Lubricators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification, and which represents a vertical section of a lubricator, constructed in accordance with my improvement.

This invention, while having some features in common with the lubrcator described in Letters Patent of the United States, issued to me on the 16th day of October, 1866,essentially differs from the same in several important respects. Thus, said patented lubri- A cator, while performing all that could be desired when oil is the lubricant, or tallow in a melted state supplied toit, is defective when tallow in bulk or in an unmelted state is required to be put into the reservoir, by reason of the vertical and central position of the valve-stem, which does not admit of' the oblique nipple on one side ofthe top, through whichthe lubricant is supplied, being made suiiiciently large to introduce lnmp-tallow, excepting in the case of very large lubricators. or by making the top of the lubrcator to exceed in diameter t-he proportions necessaryor practicable for smaller moderate-sized lubricatois.

Furthermore, supposing it possible to make such oblique nipple or feed opening sufficiently large, the vertical central valve-stem would still be an obstacle tothe use of tallow in the lump, as in .dropping the lumps into the reservoir they would jam between the valve-stem and the interior surface of the reservoir, immediately below the nipple, and the reservoir could .not be properly and entirely filled, except by the slow and tedious operation ot' dropping in a few lumps, and then by applying a rod or stick to force them around, and tothe opposite side ofthe valve-stem.

Hence, while such a lubricator answers for liquid lubricants, it is defective for lubricants required to be supplied to the reservoir in bulk or lumps.

lhespecial object, therefore, of this invention, -is to obviate such defect, and to produce a lubricator, retaining certain prominent features ofthe former invention, which shall V-be applicable to using tallow in the lump; and i The invention consists in a combination, with a central filling-orifice, of an obliquely-arranged valve and valve-stein, constructed to oii'er'thesame facilities, as regards centringand steadying the valve, and of removing it when required, without taking ofi` the stuing-box gland or displacing the packing, which my former inventionpossessed. I, however, dispense with a tubular cap to the feeding-orifice or special arrangement ot' an air-chamber, as described in my pat- 'ent hereinbefore referred to, and, by arranging the filling-orifice at the centre and valve-stem, in oblique relationship to the axial line ofthe reservoir, produce a lilbricator that may be made either of small or large size, withouta top of inconvenient proportions, ca-

pable of using lubricants in a solid form or bulk, and which is extremely simple, not liable to derangement or leakage, is cheap to manufacture, and otiers every facility for filling and operating.

Referring to the accompanying drawing- A is the reservoir of the luhricator,

B, its cap or top, and

C, its shank, provided with a central dischargepassage, a, which is made to assume an angular shape at its upper end, and is enlarged to forma valve-seat., b also is further provided above the valve-seat with an internal screw-thread, c. n

D is the valve-stein, constructed at its lower end to forni a valve, d, which works on or over the valveseat b, and is raised or lowered by means of a screw', e, arranged around said stem, and tting the .internal screw-thread c, to open or close or regulate the discharge through the passage a, and to permitoi' steam passing upward from the steam-chest, (to which the` lubricator may be supposed to be applied): -for the purpose of melting the tallowand equalizing the pressure, so as to insureits dow, which takes place down grooves g made in thescrew e.

This valvestem Dis set obliquely, as represented, and passes through an obliquely-disposed guidingnipple or tube, and 'stfing-box E, arranged on the cap B, to one side of the lling-oriice F, which is made to; occupy a central position, in the cap. Said valve-stein is operated by a knob or handle, jl l The filling-orifice F should be made suiiiciently large to admit of the tallow being introduced in goodsized lumps, and ,l said orifice beclosed by a screwplug, G, in connection with suitable soft-metal seat h, and operated by a handle, g.

The obliquely-disposed nipple and stuing-box E should be arranged a suicient distance to one side of n the illing-oriice F, to allow of its flange 'or 'shoulder screwing down on the convex surface. ofthe cap B, to

clear the annular projection of the filling-orifice, andv direct the axis of the valve-stem at its upper end, so that the loperator may turn or rotate the knob f of said stem without ijamming his' knuckles or iingers against the vertical stem of the central screw-cap or plug G, and the obliquity ofthe valve-stem preferably be sut-.has that a conicalv projection, i, on the bottom of the reservoir, servesto receive the valve and operating-screw e of thestern, and so that the convex surface of the cap B is an arc of a circle, the centre of which is at the point of intersection of the axial line of the valve-stem and central vertical line of the discharge-passage a, at or near where it commences its vertical run; but such precise disposition is not imperative, and the'bodyof the lnbricator may be in the form of a. hollow vertical cylinder, of any suitable exterior configuration, and have cast on it an obliquely-projectiug side-pipe or tube for the valvestem to pass through said tube, as in the case of the oblique nipple E, answering to steady and guide the valve in the direct line of its sent when it is pushed down from the top in the act of' inserting it.

From this. description it will be seen that the oblique and side-like disposition of the valve-stem, and central arrangement of' the filling-orifice, present no such impediments to the filling of the reservoir with talloyv in the lumpV or other solid lubricant, and self-adjustment of the same 4to supplyopposite sides 

